Board Thread:Pokémon Help/@comment-33168092-20171122184840/@comment-27248965-20171123024539

There is no best spot, the 1/1000 chance applies to all locations. My personal recommendation is Route 14 because it is a cave, which guarantees Dusk Balls to operate in full effectiveness all-time, and there is a large space to run around just outside Fluoruma City gate. You can also easily retreat to Fluoruma City for healing if anything goes wrong.